4 Inch Grinder
FailThe top 5 brands take 98% of clicks, so 4 Inch Grinder is a Fail.
- Flapen Score
- 45 / 100Ranks 5,778 of 9,536 Tools & Home Improvement niches · −3 vs the category median of 4845
- Market size
- $4.7M/yr1.4M searches / yr
- 90-day growth
- +8.5%search demand this quarter
- Competition
- 72%top-5 click share · 6 brands · 200 sellers
Flapen Score
4 Inch Grinder against its category
The dotted line is the Tools & Home Improvement average. Past it, 4 Inch Grinder is stronger. Inside it, weaker.
Market
The 4 Inch Grinder market on Amazon at a glance
Shoppers on Amazon United States searched for 4 Inch Grinder 1.4M times last year and spent an estimated $4.7M. The top 5 brands take 98% of clicks. Demand peaks in Nov. Flapen scores it 45 out of 100, a Fail.
01 · Demand
2.8% of searches ended in a purchase last week.
Shoppers searched for this 1.4M times in the last 12 months. That counts every search on Amazon United States for this niche's terms. In the latest week, 2.8% of those searches ended in a purchase. Searches in the last 90 days moved +8.5% against the 90 days before. Searches, conversion and average price together put the market at an estimated $4.7M a year.
- Searches, last 12 months
- 1.4M
- Growth, 90 days vs prior 90
- +8.5%
- Conversion, latest week
- 2.8%
- Market size, estimated
- $4.7Ma year
- Peak month
- November1.8× the quietest month
- Top search term
- dewalt grinder319K searches a year
02 · Price
A sale here is worth $121.80.
Listings sell for $121.80 on average, from $47.53 to $239.76. Amazon reports units sold in ranges. This niche sold 30K to 40K a year. The average listing sells 2,000 to 2,500 of them. At $121.80 that is $244K to $305K a year per listing.
- Average price
- $121.80above the $15 to $100 sweet spot
- Price range
- $47.53–$239.76
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 30K–40K
- Units per listing a year
- 2,000–2,500
- Revenue per listing a year
- $244K–$305K
- Returns
- 1.7%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is reviews.
72% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 4.5% of listings are out of stock. The average listing ranks #55 within Power Tools. It carries 2,542 reviews at 4.58 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 72%
- Prime listings
- 100%
- Out of stock, average day
- 4.5%
- Average rank
- #55in Power Tools
- Average rating
- 4.58 starsAmazon United States average 4.42 stars
- Average reviews
- 2,542per listing
- Listings tracked
- 18
04 · Newcomers
Amazon counts 3 of last year's 3 launches as successful.
3 products launched here in the last 12 months. Amazon counts 3 of them as successful launches, new products that hit its first-year sales bar. The brands on the shelf have sold for 34 months on average, so a newcomer is not facing entrenched names.
- Launched, last 12 months
- 3
- Successful launches
- 3Amazon's first-year sales bar
- Average brand age
- 34 months
Products
Top 4 Inch Grinder products & what they sell for
Every tracked product: its share of the shelf, its reviews, and its price.
Top sellers
by 90-day click share
DEWALT 20V MAX* Angle Grinder Tool Cordless Brushless 4 1/2 Inch with Paddle Switch and Kickback Brake Tool Only (DCG413B)
- Price
- $158.73
- Rating
- 4.8/5
- Reviews
- 9,688
- Age
- 9y ago

DEWALT 20V MAX Cordless 4 1/2 Inch Paddle-Switch Grinder Bare Tool Only (DCG408B)
- Price
- $129.17
- Rating
- 4.8/5
- Reviews
- 9,688
- Age
- 1y ago

DEWALT FLEXVOLT ADVANTAGE 20V MAX* Angle Grinder Paddle Switch 4-1/2-Inch to 5-Inch Tool Only (DCG416B)
- Price
- $146.97
- Rating
- 4.7/5
- Reviews
- 3,023
- Age
- 5y ago

DEWALT Angle Grinder 4.5 Inch 11 Amp 11 000 rpm With Paddle Switch Ergonomic Compact Design Grinder Tool (DWE402)
- Price
- $95.17
- Rating
- 4.8/5
- Reviews
- 5,449
- Age
- 11y ago

DEWALT Angle Grinder One-Touch Guard 4-1/2 -Inch (DWE4011)
- Price
- $77.22
- Rating
- 4.7/5
- Reviews
- 2,350
- Age
- 18y ago
Trending
90-day click momentum
Aiderar 4-1/2 Cordless Angle Grinder Tool For Dewalt 20V (NO Battery)
- Price
- $56.85
- Rating
- 4.6/5
- Reviews
- 35
- Age
- 2mo ago

Cordless Angle Grinder for Dewalt 20v Max Battery Brushless Cordless Grinder Tool 4 1/2 Variable Speed Electric Power 20v Angle Grinder Tool for Grinding Cutting Polishing (Battery Not Included)
- Price
- $66.14
- Rating
- 3.8/5
- Reviews
- 21
- Age
- 7mo ago

GOTUU Cordless Angle Grinder for DEWALT 20V MAX Battery 4-1/2 Power Brushless Cut Off Tool with Safe Paddle Switch 3 Variable Speed with Cutting Grinding Polishing Accessories Tool Only
- Price
- $64.01
- Rating
- 3.9/5
- Reviews
- 22
- Age
- 8mo ago

DEWALT 20V MAX Cordless 4 1/2 Inch Paddle-Switch Grinder Bare Tool Only (DCG408B)
- Price
- $129.17
- Rating
- 4.8/5
- Reviews
- 9,688
- Age
- 1y ago

DEWALT 20V MAX* Angle Grinder Tool Kit 4-1/2-Inch (DCG412P2)
- Price
- $239.76
- Rating
- 4.8/5
- Reviews
- 386
- Age
- 12y ago
Newest
by launch date
Aiderar 4-1/2 Cordless Angle Grinder Tool For Dewalt 20V (NO Battery)
- Price
- $56.85
- Rating
- 4.6/5
- Reviews
- 35
- Age
- 2mo ago

Cordless Angle Grinder for Dewalt 20v Max Battery Brushless Cordless Grinder Tool 4 1/2 Variable Speed Electric Power 20v Angle Grinder Tool for Grinding Cutting Polishing (Battery Not Included)
- Price
- $66.14
- Rating
- 3.8/5
- Reviews
- 21
- Age
- 7mo ago

GOTUU Cordless Angle Grinder for DEWALT 20V MAX Battery 4-1/2 Power Brushless Cut Off Tool with Safe Paddle Switch 3 Variable Speed with Cutting Grinding Polishing Accessories Tool Only
- Price
- $64.01
- Rating
- 3.9/5
- Reviews
- 22
- Age
- 8mo ago

Cordless Angle Grinder 4-1/2 Inch Power Grinder Tools Compatible with Dewalt 20V MAX Battery 3 Speed Power Cordless Grinder for Metal Grinding Cutting Rust Removal (Battery Not Included)
- Price
- $47.53
- Rating
- 4.1/5
- Reviews
- 82
- Age
- 1y ago

DEWALT 20V MAX Cordless 4 1/2 Inch Paddle-Switch Grinder Bare Tool Only (DCG408B)
- Price
- $129.17
- Rating
- 4.8/5
- Reviews
- 9,688
- Age
- 1y ago
Competition
Competition: brands, sellers & click share
The top 5 products take 72% of clicks. A locked shelf that new listings rarely crack.
Brands
6 rising
Sellers
200
Top-5 brand share
98%
Top 20: 100%
Top-5 click share
72%
Top 20: 100%
Open market
0%
- DEWALT90%
- GOTUU3%
- SXGSXG2%
- AOBEN2%
- Fogera2%
- AIDERAR2%
- Open — no brand owns it (0%)
Demand
4 Inch Grinder search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Nov · busiest ÷ quietest = 1.8×
Search terms
Top 4 Inch Grinder search terms shoppers use
The exact words shoppers type, with yearly volume, growth, and conversion.
- dewalt grinder319K/yr
- pulidora dewalt170K/yr
- dewalt angle grinder139K/yr
- cordless grinder103K/yr
- amoladora dewalt109K/yr
- dewalt grinder 20v max73K/yr
- esmeril dewalt68K/yr
- dewalt angle grinder 20v52K/yr
- grainer dewalt59K/yr
- grinder dewalt49K/yr
Reviews and returns
What reviews say buyers love and hate about 4 Inch Grinder
We read the reviews and the return reasons for every product selling here.
“Battery life is horrible”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
17 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common 4 Inch Grinder questions
Answered from the same tracked data.









